How to pronounce هُوَ in Surah Al-Hashr (59/22)?

I want to learn correct pronunciation of the هُوَ اللَّهُ الَّذي لا إِلٰهَ إِلّا هُوَ (59/22). Go to this link for related verse . If we want to stop in first part, according to tajweed rules (Al-Madd Al-‘Aarid), last word is pronounced with Jazm like that: هُوْ (huv) . But teachers stop like that هُ (hû) . it means without sounds letter و. You can listen this verse from teachers (like him ), he does not sound letter وَ. Others teachers also does not sound it. Why letter وَ is not read? What is the rule of it? I research a lot of Tajweed (quran reading rules) but I could not find the rule of it. Can anyone tell the rules with sources? (This example also exists in surah al-Baqarah (2/255): اللّهُ لاَ إِلَـهَ إِلاَّ هُوَ. Teachers does not sound last letter وَ in first stop part.)